410 lines
9.6 KiB
C++
410 lines
9.6 KiB
C++
#pragma once
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#include <vector>
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#include <string>
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#include <cstdint>
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#include "stmt_enum.hpp"
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#include "expr.hpp"
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#include "bits.hpp"
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namespace dsp {
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struct stmt_t
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{
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virtual void accept(visitor_t<void> const * visitor) const = 0;
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virtual uint32_t accept(visitor_t<uint32_t> const * visitor) const = 0;
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};
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template <typename T>
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struct stmt_accept_t : stmt_t {
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virtual void accept(visitor_t<void> const * visitor) const {
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return visitor->visit(static_cast<const T*>(this));
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}
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virtual uint32_t accept(visitor_t<uint32_t> const * visitor) const
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{
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return visitor->visit(static_cast<const T*>(this));
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}
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};
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template <bool S, int N>
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struct imm_t {
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imm_t(const token_t& token, const expr_t * expr)
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: token(token), expr(expr) {}
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const token_t& token;
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const expr_t * expr;
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static constexpr bool sign = S;
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static constexpr int bits = N;
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static constexpr num_t max = (1L << (bits - static_cast<num_t>(sign))) - 1;
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static constexpr num_t min = sign ? -(max + 1) : 0;
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num_t normalize(num_t value) const
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{
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if (!S && value > 2147483648) { // fixme: hack
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return value & max;
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} else {
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return value;
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}
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}
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bool in_range(num_t value) const
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{
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return value <= max && value >= min;
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}
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};
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template <int N>
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using simm_t = imm_t<true, N>;
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template <int N>
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using uimm_t = imm_t<false, N>;
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namespace op {
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struct op_t
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{
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virtual uint32_t mask() const = 0;
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virtual uint32_t code() const = 0;
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virtual uint32_t bits() const = 0;
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};
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struct alu_t : op_t, stmt_accept_t<alu_t>
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{
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alu_t(alu_type_t type)
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: type(type) {}
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const alu_type_t type;
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uint32_t mask() const { return 0b1111 << 26; }
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uint32_t code() const { return 0b0000 << 26; }
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uint32_t bits() const { return alu_bits(type); }
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};
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struct mov_ram_x_t : op_t, stmt_accept_t<mov_ram_x_t>
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{
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mov_ram_x_t(xy_src_t src)
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: src(src) {}
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const xy_src_t src;
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uint32_t mask() const { return 0b100'111 << 20; }
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uint32_t code() const { return 0b100'000 << 20; }
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uint32_t bits() const { return xy_src_bits(src, 20); }
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};
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struct mov_mul_p_t : op_t, stmt_accept_t<mov_mul_p_t>
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{
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mov_mul_p_t() {}
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uint32_t mask() const { return 0b011'000 << 20; }
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uint32_t code() const { return 0b010'000 << 20; }
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uint32_t bits() const { return 0; }
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};
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struct mov_ram_p_t : op_t, stmt_accept_t<mov_ram_p_t>
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{
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mov_ram_p_t(xy_src_t src)
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: src(src) {}
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const xy_src_t src;
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uint32_t mask() const { return 0b011'111 << 20; }
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uint32_t code() const { return 0b011'000 << 20; }
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uint32_t bits() const { return xy_src_bits(src, 20); }
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};
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struct mov_ram_y_t : op_t, stmt_accept_t<mov_ram_y_t>
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{
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mov_ram_y_t(xy_src_t src)
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: src(src) {}
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const xy_src_t src;
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uint32_t mask() const { return 0b100'111 << 14; }
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uint32_t code() const { return 0b100'000 << 14; }
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uint32_t bits() const { return xy_src_bits(src, 14); }
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};
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struct clr_a_t : op_t, stmt_accept_t<clr_a_t>
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{
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clr_a_t() {}
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uint32_t mask() const { return 0b011'000 << 14; }
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uint32_t code() const { return 0b001'000 << 14; }
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uint32_t bits() const { return 0; }
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};
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struct mov_alu_a_t : op_t, stmt_accept_t<mov_alu_a_t>
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{
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mov_alu_a_t() {}
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uint32_t mask() const { return 0b011'000 << 14; }
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uint32_t code() const { return 0b010'000 << 14; }
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uint32_t bits() const { return 0; }
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};
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struct mov_ram_a_t : op_t, stmt_accept_t<mov_ram_a_t>
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{
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mov_ram_a_t(xy_src_t src)
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: src(src) {}
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const xy_src_t src;
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uint32_t mask() const { return 0b011'111 << 14; }
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uint32_t code() const { return 0b011'000 << 14; }
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uint32_t bits() const { return xy_src_bits(src, 14); }
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};
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struct mov_imm_d1_t : op_t, stmt_accept_t<mov_imm_d1_t>
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{
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mov_imm_d1_t(uimm_t<8> imm, d1_dest_t dest)
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: imm(imm), dest(dest) {}
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const uimm_t<8> imm;
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const d1_dest_t dest;
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uint32_t mask() const { return 0b11'1111'1111'1111 << 0; }
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uint32_t code() const { return 0b01'0000'0000'0000 << 0; }
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uint32_t bits() const { return d1_dest_bits(dest); }
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};
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struct mov_ram_d1_t : op_t, stmt_accept_t<mov_ram_d1_t>
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{
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mov_ram_d1_t(d1_src_t src, d1_dest_t dest)
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: src(src), dest(dest) {}
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const d1_src_t src;
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const d1_dest_t dest;
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uint32_t mask() const { return 0b11'1111'0000'1111 << 0; }
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uint32_t code() const { return 0b11'0000'0000'0000 << 0; }
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uint32_t bits() const { return d1_dest_bits(dest) | d1_src_bits(src); }
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};
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struct control_word_t : stmt_accept_t<control_word_t>
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{
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control_word_t(std::vector<const op::op_t *> ops)
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: ops(ops)
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{
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}
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const std::vector<const op_t *> ops;
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uint32_t mask() const { return 0b11 << 30; }
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uint32_t code() const { return 0b00 << 30; }
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uint32_t bits() const { return 0; }
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};
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} // op
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namespace load {
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struct mvi_t : stmt_accept_t<mvi_t>
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{
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mvi_t(uimm_t<25> imm, dest_t dest)
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: imm(imm), dest(dest) {}
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b10'0000'0 << 25; }
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uint32_t bits() const { return dest_bits(dest); }
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const uimm_t<25> imm;
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const dest_t dest;
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};
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struct mvi_cond_t : stmt_accept_t<mvi_cond_t>
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{
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mvi_cond_t(uimm_t<19> imm, dest_t dest, cond_t cond)
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: imm(imm), dest(dest), cond(cond) {}
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const uimm_t<19> imm;
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const dest_t dest;
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const cond_t cond;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b10'0000'1 << 25; }
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uint32_t bits() const { return dest_bits(dest)
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| cond_bits(cond);
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}
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};
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} // load
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namespace dma {
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struct d0_dst_imm_t : stmt_accept_t<d0_dst_imm_t>
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{
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d0_dst_imm_t(bool hold, add_mode_t add, dst_t dst, uimm_t<8> imm)
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: hold(hold), add(add), dst(dst), imm(imm) {}
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const bool hold;
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const add_mode_t add;
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const dst_t dst;
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const uimm_t<8> imm;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1100 << 28 | 0b00 << 12; }
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uint32_t bits() const { return add_mode_bits(add)
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| hold_bits(hold)
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| dst_bits(dst);
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}
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};
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struct src_d0_imm_t : stmt_accept_t<src_d0_imm_t>
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{
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src_d0_imm_t(bool hold, add_mode_t add, src_t src, uimm_t<8> imm)
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: hold(hold), add(add), src(src), imm(imm) {}
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const bool hold;
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const add_mode_t add;
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const src_t src;
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const uimm_t<8> imm;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1100 << 28 | 0b01 << 12; }
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uint32_t bits() const { return add_mode_bits(add)
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| hold_bits(hold)
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| src_bits(src);
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}
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};
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struct d0_dst_ram_t : stmt_accept_t<d0_dst_ram_t>
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{
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d0_dst_ram_t(bool hold, add_mode_t add, dst_t dst, length_ram_t ram)
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: hold(hold), add(add), dst(dst), ram(ram) {}
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const bool hold;
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const add_mode_t add;
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const dst_t dst;
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const length_ram_t ram;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1100 << 28 | 0b10 << 12; }
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uint32_t bits() const { return add_mode_bits(add)
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| hold_bits(hold)
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| dst_bits(dst)
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| length_ram_bits(ram);
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}
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};
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struct src_d0_ram_t : stmt_accept_t<src_d0_ram_t>
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{
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// from src to d0
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src_d0_ram_t(bool hold, add_mode_t add, src_t src, length_ram_t ram)
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: hold(hold), add(add), src(src), ram(ram) {}
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const bool hold;
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const add_mode_t add;
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const src_t src;
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const length_ram_t ram;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1100 << 28 | 0b11 << 12; }
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uint32_t bits() const { return add_mode_bits(add)
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| hold_bits(hold)
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| src_bits(src)
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| length_ram_bits(ram);
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}
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};
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} // dma
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namespace jump
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{
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struct jmp_t : stmt_accept_t<jmp_t>
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{
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jmp_t(uimm_t<8> imm)
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: imm(imm) {}
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const uimm_t<8> imm;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1101'00'0 << 25; }
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uint32_t bits() const { return 0; }
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};
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struct jmp_cond_t : stmt_accept_t<jmp_cond_t>
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{
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jmp_cond_t(cond_t cond, uimm_t<8> imm)
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: cond(cond), imm(imm) {}
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const cond_t cond;
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const uimm_t<8> imm;
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1101'00'1 << 25; }
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uint32_t bits() const { return cond_bits(cond); }
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};
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} // jump
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namespace loop {
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struct btm_t : stmt_accept_t<btm_t>
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{
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1110'0 << 27; }
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uint32_t bits() const { return 0; }
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};
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struct lps_t : stmt_accept_t<lps_t>
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{
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1110'1 << 27; }
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uint32_t bits() const { return 0; }
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};
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} // loop
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namespace end {
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struct end_t : stmt_accept_t<end_t>
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{
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1111'0 << 27; }
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uint32_t bits() const { return 0; }
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};
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struct endi_t : stmt_accept_t<endi_t>
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{
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0b1111'1 << 27; }
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uint32_t bits() const { return 0; }
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};
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} // end
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namespace nop {
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struct nop_t : stmt_accept_t<nop_t>
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{
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uint32_t mask() const { return 0xffff'ffff; }
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uint32_t code() const { return 0x0000'0000; }
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uint32_t bits() const { return 0; }
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};
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}
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struct assign_t : stmt_accept_t<assign_t>
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{
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assign_t(token_t name, expr_t * value)
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: name(name), value(value) {}
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const token_t name;
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const expr_t * value;
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};
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struct label_t : stmt_accept_t<label_t>
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{
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label_t(token_t name)
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: name(name) {}
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const token_t name;
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};
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} // dsp
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